Assessing the concentration and potential dietary risk of heavy metals in vegetables at a Pb/Zn mine site, China

Autor: Shou-jiang Liu, Xue-lian Liu, Jin Pan, Qing-wei Yang, Qing Zeng, Li-na Sun, Jun Dong
Rok vydání: 2011
Předmět:
Zdroj: Environmental Earth Sciences. 64:1317-1321
ISSN: 1866-6299
1866-6280
DOI: 10.1007/s12665-011-0992-1
Popis: Cd, Pb, Cu and Zn were measured in vegetables in Xiguadi village around Lechang Pb/Zn mine in Guangdong province, South China. The daily intake (DI) of these metals from vegetables by local people was also determined. The respective Cd, Pb, Cu and Zn concentration was 0.05–0.90 (mean 0.25), 1.04–5.82 (2.64), 0.53–7.07 (2.00) and 3.87–25.20 (11.68) mg kg−1, of which Cd concentration in all vegetables exceeded the safe limit given by FAO/WHO. The DI was found to be 49.76, 475.56, 360.36 and 2,102.63 μg, respectively. The present results indicated local mining activity caused vegetable heavy metal contamination and Cd concentration exceeding the stipulated standards for all vegetables indicating potentially serious dietary risks for local people.
Databáze: OpenAIRE